| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-198538 | N/A | Impurity | |
| Regadenoson Impurity 38 | ||||
| C4X-198539 | N/A | Impurity | |
| Regadenoson Impurity 39 | ||||
| C4X-19854 | N/A | Impurity | |
| Regadenoson Impurity 4 | ||||
| C4X-198540 | N/A | Impurity | |
| Regadenoson Impurity 40 | ||||
| C4X-198541 | N/A | Impurity | |
| Regadenoson Impurity 41 | ||||
| C4X-198542 | N/A | Impurity | |
| Regadenoson Impurity 42 | ||||
| C4X-198543 | N/A | Impurity | |
| Regadenoson Impurity 43 | ||||
| C4X-198544 | N/A | Impurity | |
| "(2R,3S,4S,5R)-Regadenoson" | ||||
| C4X-198545 | 84211-27-8 | Impurity | |
| Bumetanide Impurity 44 | ||||
| C4X-198546 | 860694-39-9 | Impurity | |
| Bumetanide Impurity 45 | ||||
